Question

The sum of jack and jills age is 84. If jill is 20 times jacks age how old is each person

Answer 1

Answer:

Hey mate here is the best

Step-by-step explanation:

Let the Jack's age be X

then, Jill's age=84-x

A/Q

84-x=20*X

=84-x=20x

=84=20x+X

=84=21x

=84/21=X

=4=X

Jack's age=X=4

Jill's age=84-x

=84-4=80

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Answer 2

Let the age of Jack be x years and Jill be y years.

According to the data,

x+y=84 ---(1)

And,

x=20y ---(2)

Substituting x=20y in (1) we get,

20y+y=84

21y=84

y=84/21

y=4

Then x will be,

x=20(4)

x=80

Therefore the age of Jack is 80 years and age of Jill is 4 years.